Discrete Math Question:

Download Job Interview Questions and Answers PDF

The Cartesian Product B x A is equal to the Cartesian product A x B. Is it True or False?
a) True
b) False

Discrete Math Interview Question
Discrete Math Interview Question

Answer:

b) False
Let A = {1, 2} and B = {a, b}. The Cartesian product A x B = {(1, a), (1, b), (2, a), (2, b)} and the Cartesian product B x A = {(a, 1), (a, 2), (b, 1), (b, 2)}. This is not equal to A x B.

Download Discrete Math Interview Questions And Answers PDF

Previous QuestionNext Question
Power set of empty set has exactly _____ subset.
a) One
b) Two
c) Zero
d) Three		What is the cardinality of the set of odd positive integers less than 10?
a) 10
b) 5
c) 3
d) 20